import sys

import pygame


def check_keydown_event(event, charter):
    if event.key == pygame.K_d:
        charter.move_right = True
    elif event.key == pygame.K_a:
        charter.move_left = True
    elif event.key == pygame.K_k:
        charter.vectory_y = -35


def check_keyup_event(event, charter):
    if event.key == pygame.K_d:
        charter.move_right = False
    elif event.key == pygame.K_a:
        charter.move_left = False


def check_event(charter, bullet):
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            check_keydown_event(event, charter)
        elif event.type == pygame.KEYUP:
            check_keyup_event(event, charter)


def update_screen(ai_setting, screen, charter, bullet):
    screen.fill(ai_setting.bg_color)
    charter.blitime()
    bullet.bilitime()
    pygame.display.flip()
